THE STi is fitted with engine speed-sensitive, power-assisted rack and pinion steering, which is standard on all Impreza models. The four-spoke, leather-trimmed Momo steering wheel is finished with red stitching and comes equipped with a full-size airbag. The STi's minimum turning circle - measured at the wheel, from kerb to kerb - is 11 metres, while the steering wheel takes 2.75 turns to move from lock to lock.